Plow



Nov. 10, 1925- 1,561,325

.P. B. HAC KLEY PLOW Filed April 18. 1923 M/VENTOR fL PHIL IP a. mans).

ITTORNEVS Patented Nov. 10, 1925.

UNITE res- PATENT O FFKIE.

PLOW.

Application filed April 18, 1923.

To all whom it may concern Be it known that I, PHILIP B. IIAOKLEY, a citizen of the United States, residing at Berkeley, county of Alameda, and State of California, have invented new and useful Improvements in Plows, of which the following is a specification.

This invention relates to plows, and more particularly to a plow suited for road making and other purposes where the ground is extremely hard or well packed.

A plow of thetype under consideration is shown in Patent No. 7593M to Emphrey J. Rubottom, dated May 10th, 1904:, and the present invention has for its object to simplify and improve the construction and operation of such a plow.

The plow includes a frame carrying an adjustable share and a reversible mold board. In prior plows of this type the mold board could not readily be removed, and I find that it is frequently desirable to dispense with the mold board and to use the share alone for cutting through macadam or 1 other well packed road beds. I therefore mount the mold board so that it may be quickly and easily removed or applied to the frame. Also in such prior plows the share was not adequately braced, and, therefore, it was ill suited for the character of work encountered in road making.

One form which my invention may assume is exemplified in the following description and illustrated in the accompanying drawing, in which Fig. 1. shows a side elevation of a portion of a plow embodying my invention.

Fig. 2 shows a rear elevation of the same.

Figs. 3 and 4 show details of the front end of the mold board.

Fig. 5 shows a detail in side elevation of the connection between the share and moldboard carrying frame of the plow.

Referring in detail to the accompanying drawing, I show a plow, preferably comprising a beam 10 of wood or metal and provided with the usual handles 11. Rigidly secured to the beam near the rear end there of is a sub-frame comprising a front vertical bar 12 and a rear inclined bar 13, both connected at their lower ends to a horizontal runner 14;. In front of the rigid sub-frame is a colter blade 15 having its upper end passing through a slot 15 in the beam. and

Serial no; 632,862.

connected pivotallyto a screw-threaded rod 17. This rod in turn passes through a ring 18 and is adjustable therein means'of nuts 19. The lower end of the colter blade carries a narrow pointed share'20,-the heel of which is pivoted at 21 to a yoke 22, the yoke in turn being rigidly connected to the front endof the runner 14.

Secured to therear leg of the yokeand lying beneath the spanthereof is a pin 'or=a boss 23 which receives the bent and perforated end 24 of a mold board 25. The mold board extends rearwardly alongside of the sub-frame and is supported at its rear end by a Y-shaped arm 26, the stem of which is connected pivotally to the rear end of the runner by means of a bolt 27 The mold board is held in operative position by a chain 28 secured at one end to the Y-shaped arm 26 and connected at the other end to a slotted plate 29 on the rear end of the beam. In some cases the draft may be applied directly to the beam 10 and in other cases I may employ a draft link 30 whose rear end is connected to the colter blade 15.

By unhooking the chain 28 the mold board may be swung beneath the sub-frame so as to be disposed at one side or the other thereof, as indicated in full and dotted lines in Fig. 2, thus enabling the plow to turn its furrow either to the right or left of the frame, as desired. The top of the share 20 may be varied by changing the adjustment of the screw-threaded rod 17, the share at this time pivoting about its point of connection with the yoke 22. The yoke ties the share and sub-frame securely together and assists in taking up the thrusts applied to the share and colter blade when the plow is in operation.

In the cutting up of macadam or well packed roadways it is frequently desirable to dispense with the mold board, and, in such cases th latter is quickly removed by unscrewing the bolt 27, thrusting the mold board to one side to permit the Y-shaped arm 26 to clear the runner 14 whereupon the mold board can be thrust forwardly to lift its bent end 24 above the pin or boss 23.

Various changes in the construction and operation of the various parts herein shown and described may be employed without departing from the spirit of my invention as disclosed in the appended claims.

Having thus described my invention, what I claim and desire to secure by Letters Patent is:

1. A plow including a share, a sub-frame at the rear of the share and a yoke forming a rigid and pivotal eonnectionbetween and subl rame and share and a mold board pivotally connected at its front end to the yoke and at its rear end to the sub-frame for movement beneath the said sub-frame whereby the mold board may be disposed at either side thereof.

2. A plow including a share, a sub-frame at the rear of the share, a yoke forming a connection between the share and sub-frame, a mold board, aboss on the yoke pivotally receiving the front end of the mold board, an arm on the rear end of the mold board pivotally connected to the rear end of the sub-frame in line with said boss whereby the mold board may be swung beneath the sub-frame so as to be disposed at one side or the other thereof.

3. A plow including a share, a sub-frame at the rear of the share, a yoke forming a connection between the share and sub-fa me, a mold board, a boss on the yoke pivot-ally receiving the front end of the mold board an arm on the rear end of the mold board pivotally connected to the rear end of the sub-frame in line with said boss whereby the mold board may be swung beneath the subframe so as to be disposed at one side or the other thereof, one of said points of connection for the mold board being removable so as to permit the said mold board to be detached without disturbing the position or adjustment of the share.

PHILIP B. I-IAOKLEY. 

